Double ring cap frame



June 21, 1932. M. INGHAM DOUBLE RING CAP FRAME Filed Nov. 2. 1931 INVENTOR Q Moms! If. m v J Patented June 21, 1932 UNITED STATES MARK INGHAM, OF LOWELL, MASSACHUSETTS DOUBLE RING CAP FRAME Application filed November 2, 1931. Serial No. 572,532.

' This invention relates to the formation of textile strands particularly the strands known as roving although it is also applicable to spun or twisted yarns. It is especially use- 5 ful in the treatment of wool fibers in forming worsted roving and worsted yarn on the machines known as roving frames or rovers, spinning frames and twisting frames.

It is an improvement on the device shown in my application for United States Letters Patent filed July 3, 1931, Serial No. 548,511 on cap frame.

In that device I combined to a certain extent the well known ring frame with a cap frame by attaching a ring at the bottom of a cap and placing a traveller on the ring. In that device, however, the roving did not run through the traveller but pushed it around.

The advantages of that construction and this construction are that I can use .a cap which is so much longer and of greater diameter than is possible in the usual cap frames, thereby increasing the size of the bobbin or spool and thus making a larger package.

In that device, I also provided a revolving guide eye through which the slubbing or roving travelled to the cap, the purpose of such guide eye being to impart a false twist which made it stronger'and lessened the danger of breaks.

The result of the process which I use with a large cap and ring at the bottom either as described in the aforesaid application or this is that the speed of delivery can be greatly increased as well as the revolutions per minute and the resulting product is stronger. and the twist is more even.

The device is also an improvement over otherframes as there is less breaking in starting and stopping.

This device is shown as used in connection with a fixed spindle rail with fixed guide spindles extending upward therefrom, on each spindle there being a spool carrier which carries a spool or bobbin provided with means whereby it is revolved and is also moved up and down on the spindle.

As in said application, than the usual length and diameterand which is substantially cylindrical except where it I use a cap of morenarrows in at the top. Such cap is provided at its lower rim with a downwardly and outwardly projecting hardened strand guide ring so that atraveller can move around dependingand extending out therefrom.

I leave out the revoluble guide eye but use at the top of the cap a top strand guide ring of smooth hardened metal and also an upwardly projecting traveller ring around which moves a traveller through which the rovlng passes.

On frames of the character described, it is necessary to use sheet metal separators between the spindles to prevent the yarn or roving on adjoining spindles from ballooning and striking.

Where a cap of extra large diameter is used and especially where high speeds are used, the tendency to balloon is naturally greater and for this reason, I have found that there is a tendency for the roving or yarn to strike the separators as it revolves.

Mainly to prevent this and also to start the twist or to form the twist nearer the delivery rolls, I use this top ring and traveller which tend to hold in the ballooning and prevent striking the separators.

While I prefer. to use a traveller and a traveller ring at the bottom, as the drag or tension can be regulated by the weight of the traveller or brake, I can reduce its weight to nothing if desired or in other words, I can omit it entirely. Moreover, at reduced speeds, I can omit the top traveller and traveller, ring as well as the traveller at the bottom, using rings projecting from the top and bottom rims of the cap to hold the roving radially away from the cylindrical body and below its bottom rim. 7

In the drawing, Fig. 1 is a. diagrammatic v side elevation of a textile strand twisting machine, the one shown being such as I prefer to use for worsted roving.

Fig. 2 is a vertical sectional side elevation similar to Fig. 1, but showing the bobbin rail and bobbin in the down position while Fig. 1

shows them in the up position.

Fig. 3 is an enlarged front elevation of a single spindle with the adjoiningparts, the

i a worsted cap machine which might be a roving frame or a spinning frame. B is a fixed spindle rail and C a guide spindle fixed thereto and projecting upwardly therefrom.

Dis a spool carrier which includes a base 20 whichrests on a bobbin rail M, a whirl 21 driven by a band such as 22, a shoulder 23 which enters a recess 13 in spool F and a tube 24 which fits smoothly inside the central hole l 14 of spool F.

N represents means to move bobbin rail up and down. It may be com:- icted to and operated by any of the well kr own builder motions such as the Scaife motion or any heart cam actuated builder means.

- P represents the means to revolve the spool carrier and as shown includes av well known arrangement of pulleys such as 25 and '26 around which travels a cantinuous band such as 22.

I also prefer to provide the two guide pulleys 27 and 28 carried by a frame 29 connected with the builder means N for the bobbin rail M whereby the band 22 is kept in horizontal alinement with the whirl 21 during the building. This last arrangement is desirable as I use a considerably longer spool or bobbin than is customary. Preferably pulleys 27 and 28 are revoluble in ball bearings.

G is acap which is cylindrical from the bottom edge 30 to the top guide ring 31 which projects outwardly and is made of smooth hardened metal so that the roving R will slide around on its outer rim smoothly and with the least amount of friction. The top of cap G is constricted at 32 and is forced upon the top 12 of spindle C.

I is a hardened metal ring which as shown has a part which fits ust inside the lower rim 30 of cap G and at 61 projects out beyond lower rim 30 while below are the flanges 62 and 63 which serve as a track for a traveller or brake H. This traveller H depends below ring I and as the roving R, as shown in Figs. 4 and 5, when the machine starts, runs down over ring 31 then over the outer edge 61 of ring I and thence under and between the flanges 62 and 63,as it moves around, it carries traveller H with it.

The roving B does not run through travels ler H but pushes it along at a speed which can be regulated by increasing or decreasing the weight of the traveller. v

The silver or slubbing S. has been wound on spools such as 7 O and runs from there through a suitable traversing guide 71 and through drawing rolls 72all of any usual type thence through a guide eye L in guide eye rail K.

I prefer to use a simple closed form of eye L and pivoted at 3 to rail K, an eye holder 13 which carries the eye. The eye, holder and pivot all form part of eye rail K.

At the top of cap G adjoining guide ring 31, I-attach by any suitable means such as welding a top traveller ring which extends out in each direction with flanges 81 and 82 which hold and guide a top traveller T.

Y, Y represent the sheet metal separators between the different spindles and bobbins of arframe such as are generally used.

Z represents a wind break which I prefer to locate back of the separators Y, Y to'avoid drafts. On account of the exceedingly high rate of speed at which my device can be run,

it is desirable if not necessary to keep any drafts caused by persons passing or from any other reason from getting at the whirling roving.

As shown in Fig. 6, instead of using at the top separate guide rings 31 and traveller rings 80 and a separate cap 32, I can make the whole device indicated by V with cylindrical skirt 4, cap 5, top guide ring 6 and top traveller ring 7 as well as the bottom ring with an outer edge 8 and traveller ring 9 integral.

I claim:

1. The combination in a worsted roving machine, of a frame, a fixed spindle rail, parallel guide spindles fixed thereto, a spool carrier slidable on each spindle together with means to revolve each spool carrier and to move it up and down on its spindle; separators fixed to the frame and positioned midway between the spindles and a wind break fixed to the frame behind the spindles; with a cap carried at its top at the top of each spindle, said cap having near its upper part a hardened out-' wardly projecting top strand guiding ring .together with an upwardly projecting top traveller ring and at its bottom, downwardly and outwardly projecting traveller and strand guiding rings; a traveller slidable on, around and below said bottom traveller guiding ring; a traveller slidable on and around the top traveller ring; strand delivery rolls; and a guide eye rail between the delivery rolls and the tops of the spindles, said guide eye rail including pivoted eye holders each formed with a guide eye in line with the axis of a spindle. I I 2. The combination in a textile strand twisting machine; of a frame, a fixed spindle rail, guide spindles fixed thereto, a spool carrier slidable on each spindle, means to revolve eachspool carrier and to move it up and down on its spindle and separators positioned between the spindles; with a cap carried at it's top at the top of each spindle, each cap having near its upper part a hardened X outwardly projecting top strand guiding ring together with an upwardly projecting top traveller ring, and at its bottom downwardly and outwardly projecting hardened traveller and strand guiding rings; a traveller slidable on, around and below the bottom traveller ring; a traveller slidable on and around the top traveller ring; strand delivery rolls; a guide eyerail between the delivery rolls and the tops of the spindles, said guide eye rail including guide eyes each in line with the axis of a spindle.

3. The combination in a textile strand twisting machine; of a frame, a fixed spindle rail, guide spindles fixed thereto, a spool carrier slidable on each spindle, means to revolve each spool carrier and to move it up and down on its spindle and separators positioned between the spindles; with a cap carried at its top at the top of each spindle, each cap having near its upper part a hardened outwardly projecting top strand guiding ring together with an upwardly projecting top traveller ring, and at its bottom downwardly and outwardly projecting hardened strand guiding rings; a traveller slidable on and around the top traveller ring; strand delivery rolls; a guide eye rail between the delivery rolls and the tops of the spindles, said guide eye rail including guide eyes each in line with i the axis of a spindle. a MARK INGHAM. 

